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Custom Size Filters are Priced and based upon the size in square inches. Below is a diagram on how to measure the size of the filter. PLEASE NOTE: The size written on the side of the filter is not the exact size. We need the EXACT SIZE to assure the filter will be made to your dimensions.
"A" = Width "B" = Length
A x B = Filter in square inches
Above Example would be
16.25" * 25" = 406.25" (Square Inches) - which is "F" Category.
If the size in square inches is:
- Between 0 and 149 - the last digit should be "A" Category
- Between 150 and 199 - the last digit should be "B" Category
- Between 200 and 249 - the last digit should be "C" Category
- Between 250 and 299 - the last digit should be "D" Category
- Between 300 and 399 - the last digit should be "E" Category
- Between 400 and 499 - the last digit should be "F" Category
- Between 500 and 599 - the last digit should be "G" Category
- Between 600 and 699 - the last digit should be "H" Category
- Between 700 and 799 - the last digit should be "I" Category
- Between 800 and 899 - the last digit should be "J" Category
- Between 900 and 999 - the last digit should be "K" Category
Input EXACT Sizes in Boxes supplied.
1" and 2" filters are shipped in a carton of 12
4" filters are shipped in 2 cartons of 6
Prices listed are for a carton of 12 - and are not returnable due to the custom size request.
Our "Micro Allergy" pleated filters feature electrostaticly charged, 100% synthetic fibers that do not absorb moisture and will not support microbial growth. No toxic anti-microbial additives are necessary. This series of pleated filter is designed for maximum filtration of dust and pollen without putting undo strain on your furnace or air conditioner. Designed to capture large allergens and dust particles.
MERV:11
Recommended Replacement: Every 3 months (max)
Rated Velocity: 500fpm
Initial Resistance: .25
Actual Thickness: 3 3/4"
Usually Ships: 1 Week to 10 days
Not returnable due to the custom size request.
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